javascript is number an integer
Number.isInteger(value)
//returns a Booleanjavascript is number an integer
Number.isInteger(value)
//returns a Booleaninteger check in javascript
var a=Number.isInteger(5); //True
var b= Number.isInteger(01); //True
var c=Number.isInteger("10"); //False
console.log(a,b,c); //true true falsejavascript check if a value is an int
// The Number.isInteger() checks to see if the passed value is an integer
// Returns true or false
Number.isInteger(2); //True
Number.isInteger(90); //True
Number.isInteger("37"); //False
Number.isInteger(false); //falsejavascript check if variable is number
function isNumber(n) {
return !isNaN(parseFloat(n)) && !isNaN(n - 0);
}js check if string is int
function isNumeric(str) {
// Check if input is string
if (typeof str != "string")
return false
// Use type coercion to parse the _entirety_ of the string
// (`parseFloat` alone does not do this).
// Also ensure that the strings whitespaces fail
return !isNaN(str) &&
!isNaN(parseFloat(str))
}Copyright © 2021 Codeinu
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